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Home » Saltwater Aquarium Supplies  » Calcium Reactors  » Calcium Reactors  »  AquaMaxx Star Calcium Reactor
AquaMaxx Star Calcium Reactor

AquaMaxx Star Calcium Reactor

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AquaMaxx Star Calcium Reactor Information

Product Manuals & Documentation

The all-new AquaMaxx Star S-1 combines top-quality materials, a high-efficiency pump and innovative design to deliver a superb calcium reactor. Special injection design reduces wear-and-tear and extends the life of the Italian-Made Sicce pump. Conical lid virtually eliminates all dead spots inside the reactor and recirculates unused CO2 to maximize efficiency. With a built-in a pH probe holder, you can easily keep an eye on the pH inside the calcium reactor with a pH monitor or control the CO2 with a pH controller. Not only will you be impressed by its effectiveness, you will also be impressed visually by the look and design of the AquaMaxx Star Calcium Reactor!

With the AquaMaxx Star Calcium Reactor, CO2 is injected on the outlet side of the pump. This prevents cavitation and helps to prolong the life of the pump. Outlet-injection also ensures that the flow rate inside the reactor stays constant to maximize efficiency.

CO2 recovery design re-injects excess/unused CO2. This helps to lower CO2 usage and to make sure no excess CO2 goes back to your aquarium.

Reverse-flow design to prevent clogging and improve water circulation.

Gravity Feed or Aqualifter Pump recommended for installation!

Thumbscrews allow for easy lid removal. Easy to clean and service!

Designed to be used with any calcium reactor media.

  • Overall height: 22” (not including hoses)
  • Pump: Italian-made SICCE Syncra silent 1.5
  • Reaction tube diameter: 5”
  • Chamber capacity: 3.2 L
  • Footprint: 10” x 11”
  • Capacity: up to 300 Gallons

*Late models no longer include sponges to avoid CO2 from getting trapped in the sponges. The plates have been redesigned with smaller holes so that sponges are no longer required.

Manufacturer Info

AquaMaxx is a Southern California-based aquarium supply company that entered the market in mid-2008 with a line of affordable metal halide bulbs. The brand quickly gained recognition as word spread about the high quality and low cost of their lamps. In 2009, AquaMaxx released a line of aquarium filter socks and, in early 2010, unveiled an assortment of high-performance protein skimmer accessories and upgrades.


AquaMaxx Limited Manufacturer Warranty
AquaMaxx will warrant all AquaMaxx products to be free from manufacturing defects for one year from the original purchase date when purchased through an authorized AquaMaxx retailer. This warranty does not cover any damages caused by misuse, neglect, alterations or improper handling/transport/maintenance/installation. AquaMaxx does not cover personal injury, personal loss, or other damages associated with the use of these products.

AquaMaxx Star Calcium Reactor Reviews

Average Rating
(3 reviews)
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Fantastic High Quality Product

Reviewers Rating Excellent!

Posted: 1/14/2016 from PORTLAND, OR UNITED STATES
5.0 5
Experience Level: Expert

Comments: I purchased the Star S-1 about 8 months ago from Marine Depot for use on my LPS/SPS reef aquarium. The build quality of this product is excellent! All parts are very high quality, it's easy to assemble, and runs silent. So far, it's been set and forget. There has been almost no fluctuation in my Ca/Alk/Mg since I begin using it and PH remains stable. The only thing i wish this product came with is a secondary effluent reaction chamber. However, many reactors do not have these either. I built one using PVC for under $20 and connected it to the output of the reactor. HIGHLY recommend purchasing this Calcium Reactor over other brands! You will not be disappointed!

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Nicely built

Reviewers Rating Excellent!

Posted: 7/9/2015 from KAILUA, HI UNITED STATES
4.5 5
Experience Level: Expert

Comments: I have a mod. loaded 600g mixed reef (sps, ops, zoos, octos, fish). Dosing Ca/Mg/Alk was consuming too much product/money. Perhaps any correctly sized Ca Reactor would have solved my situation. The sizes avail at MD had me using twin reactors or the S3. Single S3 is less space, went for it. Really like the quality, well built and functions nearly as advertised (feed pump is required to maintain a dependable effluent flow). I use a Tom’s Aqualifter placed after the eft valve. This eliminates system pressure and significantly reduces the chance of blowing an eff line off the valve or aqualifter. Best way to adjust (IMO) is to establish a steady eff rate and raise or lower pH controller set point (I use Apex but any pH controller would due). Raise to decrease Ca/Mg, lower to increase (minding the melting point of the media!!!). Ca/Mg levels high and steady, Alk lower than I expected. Using Next Reef MR1XL as a secondary chamber to help. Minus half a star rating due to placement of the pH probe well. It’s several inches away from the main chamber and this delays reading the chamber pH (delay increases as the effl decreases). If the eff stops while the CO2 solenoid is on, the probe won’t read the dropping pH and meltdown is possible.

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Required first purchase

Reviewers Rating Excellent!

Posted: 6/3/2015 from OCCOQUAN, VA UNITED STATES
5.0 5
Experience Level: Expert

Comments: I don't know why I waited so long this should be a required purchase right after a quality filter system. This product is beyond expectations it is beautiful and takes care of your tank. With the marine Depot videos it was very easy to first know what to purchase and set the system up and then in the second video to tune it to your system. I am easily using it for several tanks, just branch off the outlet and use like an air line valve and you can change the flow rate for several tanks. No more two-part additives kalwater or any of the other ways and your tank is always perfectly balanced. I would recommend this set up for any size system even as small as 40 gallons we can always expand later to 300.

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